Table 9 Holdout performance (Weeks...

Table 9

Holdout performance (Weeks 11–13): persistence baseline

Target	MAE	RMSE	R²
Poster	13.33	15.81	−0.45
Observer	11.00	13.03	−0.89
Non-member	3.67	4.04	−0.17
OVERALL	9.33	12.06	−0.58

Sharing Unavailable